Engine Diagnostics & Repair in Springfield, MO
Get Real Answers—Not Guesswork
When that check engine light comes on, it’s easy to panic—or worse, ignore it. But not every code means disaster. At ACE Transmission Service, our ASE-certified technicians use advanced diagnostic tools to pinpoint what’s really going on under the hood. No upselling. No guessing. Just straight answers and quality repairs that keep your car running like new.
Why Accurate Diagnostics Matter
Modern engines rely on a web of sensors, modules, and systems all talking to each other. One small failure can trigger a chain reaction of symptoms. Accurate diagnostics save time and money by identifying the root cause, not just the symptom.
At ACE, we don’t rely solely on code readers—we interpret live data, perform component tests, and verify findings before replacing a single part.
Common Issues We Diagnose & Repair
- Check engine light and stored fault codes
- Engine misfires, stalling, or rough idle
- Poor fuel economy or loss of power
- Ignition coil and spark plug issues
- Fuel injector and sensor faults
- Timing belt or chain problems
- Gasket leaks and overheating
- Complete engine replacement when needed
If your car shakes, sputters, or just doesn’t feel right, we can help identify why—and fix it for good.
Our Diagnostic Process
- Code Scan & Baseline Testing
We start with a complete scan of your vehicle’s onboard diagnostic system to retrieve error codes. - Visual & Mechanical Inspection
Our team checks wiring, connectors, and mechanical components for visible wear or damage. - Component Testing
Using multimeters and scan tools, we test sensors, coils, and fuel system components for correct operation. - Verification Drive
After repairs, we road test to confirm your vehicle performs like it should—smooth, efficient, and reliable.
Why Springfield Drivers Trust ACE
- ASE-Certified Technicians with deep diagnostic experience
- State-of-the-art tools—we read data the big box stores can’t
- Transparent communication before any repair is done
- Nationwide warranty coverage on major repairs
- Local reputation built on honesty and precision
We’ve served Springfield and Southwest Missouri drivers for over four decades. Whether it’s a small sensor or a full engine replacement, we’ll treat your car like it’s our own.
What to Expect When You Visit
- A friendly greeting and a clear timeline for diagnostics
- A printed or emailed report showing what we found
- Repair options that fit your budget and timeline
- No-pressure recommendations—you stay in control
FAQs About Engine Diagnostics
Q: Can I still drive with my check engine light on?
A steady light often means a minor issue, but a flashing light means possible engine damage—get it checked right away.
Q: How long does an engine diagnostic take?
Most tests take 30–60 minutes, but complex issues can require extended testing.
Q: How much does a diagnostic cost?
Basic diagnostics typically start at $79, and that cost is often credited toward your repair if you proceed with service.
Q: Will you tell me exactly what’s wrong before fixing it?
Yes—every customer receives a detailed estimate and explanation before work begins.
Book Your Diagnostic Appointment
🚗 Don’t guess—know for sure.
If your engine light is on or your car feels off, schedule a professional diagnostic today at ACE Transmission Service.
📞 Call (417) 831-9390 or Schedule Online to get started.